Remove menu and status bars in TinyMCE 4

I looked at the source and it was fairly obvious:

tinyMCE.init({
    menubar:false,
    statusbar: false,
        //etc
})

This removes both.

You can also customise what parts of the default menu bar are visible by specifying a string of enabled menus – e.g. menubar: 'file edit'

You can define your own menus like this:

menu : {    
    test: {title: 'Test Menu', items: 'newdocument'} 
},
menubar: 'test'